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【单选题】
当温度降低而其他条件不变时,晶体二极管的反向饱和电流将( ) 。A.
不变
B.
变大
C.
变小
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反馈参考答案：
举一反三
【多选题】现代资本主义银行主要是通过下列哪些途径产生的( )。
A.
高利贷性质的早期银行适应资本主义的需要转变而来
B.
按资本主义原则新组建股份制银行
C.
发行债券
D.
行业协会集资
【单选题】What is Sarah’s excuse to ask for an extension?
A.
She was not aware of the deadline.
B.
Her parents are in London for a few days and she wants to spend time with them.
C.
She cannot find the relevant bibliography.
D.
She doesn’t have a computer.
【单选题】( ) Sarah’s parents were away for business. She had to look after _____ brother.
A.
herself
B.
she
C.
her
D.
hers
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